Exhibit 99.1
alliantenergylogo1.jpg
Alliant Energy Corporation
Corporate Headquarters
4902 North Biltmore Lane
Madison, WI 53718-2148
www.alliantenergy.com
News Release
FOR IMMEDIATE RELEASEMedia Contact:Scott Reigstad (608) 458-3145
Investor Relations:Susan Gille (608) 458-3956

ALLIANT ENERGY ANNOUNCES 2020 RESULTS

MADISON, Wis. - February 18, 2021 - Alliant Energy Corporation (NASDAQ: LNT) today announced U.S. generally accepted accounting principles (GAAP) and non-GAAP consolidated unaudited earnings per share (EPS) for 2020 and 2019 as follows:
GAAP EPSNon-GAAP EPS
2020201920202019
Utilities and Corporate Services$2.36 $2.22 $2.36 $2.22 
American Transmission Company (ATC) Holdings0.14 0.14 0.14 0.12 
Non-utility and Parent(0.03)(0.03)(0.07)(0.03)
Alliant Energy Consolidated$2.47 $2.33 $2.43 $2.31 

“Despite the events of an unprecedented year, we once again delivered strong earnings growth through solid execution of our purpose-driven strategy. In 2020, we completed our historic wind expansion and announced plans to invest in over 1,400 megawatts of solar, continuing to be one of the industry leaders in the advancement of renewable energy,” said John Larsen, Alliant Energy Chairman, President and CEO. “Consistent with our 5 to 7% long-term earnings growth goal, our 2020 temperature normalized non-GAAP earnings per share increased 7% over calendar year 2019.”

Utilities and Corporate Services - Alliant Energy’s Utilities and Alliant Energy Corporate Services, Inc. (Corporate Services) operations generated $2.36 per share of GAAP EPS in 2020, which was $0.14 per share higher than 2019. The primary driver of higher EPS was higher earnings resulting from Interstate Power and Light Company’s (IPL’s) and Wisconsin Power and Light Company’s (WPL’s) increasing rate base. This item was partially offset by higher depreciation expense, lower allowance for funds used during construction, equity dilution, and higher WPL electric fuel-related costs, net of recoveries.

Earnings Adjustments - Non-GAAP EPS for 2020 excludes $0.02 per share related to credit loss adjustments on a guarantee for an affiliate of Whiting Petroleum Corporation (Whiting Petroleum) and $0.02 per share related to a tax valuation allowance adjustment, both for Alliant Energy’s Non-utility and Parent. Non-GAAP EPS for 2019 excludes earnings of $0.02 per share related to ATC return on equity (ROE) reserve adjustments due to a Federal Energy Regulatory Commission decision in the fourth quarter of 2019 regarding Midcontinent Independent System Operator, Inc. transmission owners’ authorized ROE. Non-GAAP adjustments, which relate to material charges or income that are not normally associated with ongoing operations, are provided as a supplement to results reported in accordance with GAAP.

Temperature Impacts to Non-GAAP EPS - The estimated net impacts of temperatures on retail electric and gas sales were $0.01 per share and $0.05 per share gains in 2020 and 2019, respectively. The temperature-normalized non-GAAP EPS was $2.42 per share and $2.26 per share for fiscal years 2020 and 2019, respectively.

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The following information was filed by Alliant Energy Corp (LNT) on Friday, February 19, 2021 as an 8K 2.02 statement, which is an earnings press release pertaining to results of operations and financial condition. It may be helpful to assess the quality of management by comparing the information in the press release to the information in the accompanying 10-K Annual Report statement of earnings and operation as management may choose to highlight particular information in the press release.

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